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Cheap flights from Seattle to Ireland from €218

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ireland departing on 7/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
15:40 - 13:15
SEA
-
DUB
13h 35m
1 stop
Icelandair Logo
14:15 - 20:40
DUB
-
SEA
14h 25m
1 stop
€323Icelandair
Sun, 19 Apr - Thu, 23 Apr
Icelandair Logo
15:40 - 11:05
SEA
-
DUB
11h 25m
1 stop
Icelandair Logo
14:15 - 17:55
DUB
-
SEA
11h 40m
1 stop
€330Icelandair
Tue, 28 Apr - Tue, 5 May
American Airlines Logo
13:35 - 16:10
SEA
-
SNN
18h 35m
1 stop
American Airlines Logo
21:15 - 11:35
SNN
-
SEA
22h 20m
1 stop
€398American Airlines
Wed, 22 Apr - Wed, 29 Apr
American Airlines Logo
13:29 - 16:10
SEA
-
SNN
18h 41m
2 stops
American Airlines Logo
21:15 - 18:25
SNN
-
SEA
29h 10m
1 stop
€401American Airlines
Wed, 22 Apr - Wed, 29 Apr
British Airways Logo
18:50 - 16:45
SEA
-
SNN
13h 55m
1 stop
British Airways Logo
20:05 - 17:55
SNN
-
SEA
28h 50m
1 stop
€408British Airways
Wed, 4 Mar - Sun, 8 Mar
British Airways Logo
07:15 - 16:45
SEA
-
SNN
25h 30m
2 stops
British Airways Logo
20:05 - 17:55
SNN
-
SEA
28h 50m
1 stop
€412British Airways
Wed, 4 Mar - Sun, 8 Mar
Lufthansa Logo
19:20 - 16:20
SEA
-
ORK
37h 00m
2 stops
Lufthansa Logo
17:05 - 12:20
ORK
-
SEA
27h 15m
1 stop
€453Lufthansa
Sun, 3 May - Mon, 18 May
Lufthansa Logo
14:10 - 16:30
SEA
-
ORK
18h 20m
1 stop
Lufthansa Logo
17:05 - 18:30
ORK
-
SEA
33h 25m
2 stops
€460Lufthansa
Wed, 6 May - Thu, 21 May
Multiple Airlines Logo
14:10 - 16:30
SEA
-
ORK
18h 20m
1 stop
Multiple Airlines Logo
19:35 - 21:06
ORK
-
SEA
33h 31m
2 stops
€468Multiple Airlines
Sun, 12 Apr - Fri, 1 May
Multiple Airlines Logo
18:55 - 17:30
SEA
-
KIR
14h 35m
1 stop
Multiple Airlines Logo
18:00 - 18:38
KIR
-
SEA
32h 38m
2 stops
€1,088Multiple Airlines
Fri, 5 Jun - Tue, 28 Jul

Icelandair flights from Seattle to Ireland

Our best Icelandair deals on Seattle to Ireland flight tickets
Icelandair
19 Apr
SEA15:40Seattle/Tacoma Intl
13h 35m
1 stop
DUB13:15Dublin
23 Apr
DUB14:15Dublin
14h 25m
1 stop
SEA20:40Seattle/Tacoma Intl
€323
Icelandair
28 Apr
SEA15:40Seattle/Tacoma Intl
11h 25m
1 stop
DUB11:05Dublin
5 May
DUB14:15Dublin
11h 40m
1 stop
SEA17:55Seattle/Tacoma Intl
€330
Icelandair
1 May
SEA15:40Seattle/Tacoma Intl
13h 35m
1 stop
DUB13:15Dublin
8 May
DUB12:15Dublin
16h 25m
1 stop
SEA20:40Seattle/Tacoma Intl
€336

British Airways flights from Seattle to Ireland

Our best British Airways deals on Seattle to Ireland flight tickets
British Airways
4 Mar
SEA18:50Seattle/Tacoma Intl
13h 55m
1 stop
SNN16:45Shannon
8 Mar
SNN20:05Shannon
28h 50m
1 stop
SEA17:55Seattle/Tacoma Intl
€408
British Airways
4 Mar
SEA07:15Seattle/Tacoma Intl
25h 30m
2 stops
SNN16:45Shannon
8 Mar
SNN20:05Shannon
28h 50m
1 stop
SEA17:55Seattle/Tacoma Intl
€412
British Airways
4 Mar
SEA06:44Seattle/Tacoma Intl
20h 46m
2 stops
SNN11:30Shannon
8 Mar
SNN07:50Shannon
23h 34m
2 stops
SEA23:24Seattle/Tacoma Intl
€421

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 25 January 2026.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 19/4

15:40-13:15

1 stop13h 35m

Dublin

Thu 23/4

14:15-20:40

1 stop14h 25m

€323

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 28/4

15:40-11:05

1 stop11h 25m

Dublin

Tue 5/5

14:15-17:55

1 stop11h 40m

€330

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 22/4

13:35-16:10

1 stop18h 35m

Shannon

Wed 29/4

21:15-11:35

1 stop22h 20m

€398

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 22/4

13:29-16:10

2 stops18h 41m

Shannon

Wed 29/4

21:15-18:25

1 stop29h 10m

€401

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 4/3

18:50-16:45

1 stop13h 55m

Shannon

Sun 8/3

20:05-17:55

1 stop28h 50m

€408

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 4/3

07:15-16:45

2 stops25h 30m

Shannon

Sun 8/3

20:05-17:55

1 stop28h 50m

€412

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Sun 3/5

19:20-16:20

2 stops37h 00m

Cork

Mon 18/5

17:05-12:20

1 stop27h 15m

€453

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Wed 6/5

14:10-16:30

1 stop18h 20m

Cork

Thu 21/5

17:05-18:30

2 stops33h 25m

€460

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Sun 12/4

14:10-16:30

1 stop18h 20m

Cork

Fri 1/5

19:35-21:06

2 stops33h 31m

€468

SeattleMilltown (Kerry)

SEA - KIR

SEAKIR

Seattle/Tacoma Intl

Fri 5/6

18:55-17:30

1 stop14h 35m

Milltown (Kerry)

Tue 28/7

18:00-18:38

2 stops32h 38m

€1,088

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Ireland from

How to get the cheapest flight ticket from Seattle to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of February is another great option to travel to Ireland, with average flight prices from Seattle averaging around €465.

What is the cheapest Seattle/Tacoma Intl to Ireland flight route?

Fly from Seattle/Tacoma Intl to Dublin for the best Seattle/Tacoma Intl - Ireland flight prices

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €544 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Seattle for as low as €485 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Ireland flights?

There is only 1 cabin class available to choose from on Seattle/Tacoma Intl to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Ireland flights?

You could potentially save up to 2% on your flight if you consider stops on a Seattle to Ireland flight.

Cheap Seattle to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ireland

Fastest flight time

9h 05m

Direct flights

Every day

Airports in Ireland

77 airports
The fastest flight from Seattle to Ireland takes 9h 05m
Direct flights go from Seattle to Ireland every day.
There are 77 airports in Ireland. From Seattle there are direct flights to Dublin (DUB).
Search flight deals

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ireland?

    Prices for flights from Seattle/Tacoma Intl Airport to Ireland are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Ireland?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ireland for you.

Can I find flights from Seattle to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Ireland?

momondo helps you find the best flight between Seattle and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Ireland from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €38
Flights to Corkfrom €89
Flights to Shannon, Clarefrom €84
Flights to Donegalfrom €74
Flights to Milltown (Kerry)from €38